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Finding the Fourth Proportional to 1,826.79, 2,741.21 and 731.24

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Solution

The fourth proportional to 1,826.79, 2,741.21 and 731.24 is: 1,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.79 : 2,741.21 = 731.24 : x
  2. Step 2: Convert to fraction form
    1,826.79/2,741.21 = 731.24/x
  3. Step 3: Cross multiply
    1,826.79x = 2,741.21 × 731.24
  4. Step 4: Simplify right side
    1,826.79x = 2,004,492.71
  5. Step 5: Solve for x
    x = 2,004,492.71/1,826.79
  6. Step 6: Final answer
    x = 1,097.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.